Mortgages, Notes and Loans Payable, Net (Summary of Mortgages, Notes and Loans Payable) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Unamortized deferred financing costs	$ (51,534)	$ (55,005)
Mortgages, notes, and loans payable, net	5,196,000	4,747,183
Senior Notes
Debt Instrument [Line Items]
Fixed-rate debt	2,050,000	2,050,000
Mortgages
Debt Instrument [Line Items]
Fixed-rate debt	1,492,580	1,500,841
Variable-rate debt	1,174,574	916,570
Bonds
Debt Instrument [Line Items]
Fixed-rate debt	55,380	59,777
Secured Debt
Debt Instrument [Line Items]
Variable-rate debt	$ 475,000	$ 275,000